Part Number: BQ27546-G1 Other Parts Discussed in Thread: GPCRA0 , GAUGEPARCAL , GPCCHEM Hi,
from https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1113669/bq27546-g1-soc-jump-during-relax-discharge-relax-test
this…
Hello Tom
For very low temperature operation, there is additional information required. There are online tools to help tweak the chemistry data.
Please see GAUGEPARCAL and GPCRB tools for more information
Grandaphi,
Currently this cell does not exist in our database. I was waiting to reply hoping someone from the community could have a better answer. I do suspect you will find a match to an already existing chemID.
As i assume you are doing please use…
Michael,
The gauge will constantly be learning. The 6 cycles can be done outside of the system and just collected on the bench. They are used to establish the "EDV" end voltage points. The procedure to follow is located here https://www.ti.com…
Widji,
When using a new battery the best thing to do it to run a match using our GPC online tool https://www.ti.com/tool/GAUGEPARCAL . If the ID you used is in the list the you should be ok to proceed with the learning.
The sysrate log file you provided…
Part Number: BQ34110 Other Parts Discussed in Thread: GAUGEPARCAL The documentation is very lacking regarding which voltage parameters need to be set per CELL and which are set per STACK. You cannot use the default values (as one suggested) because those…
Hi,
1. Registers show the status of the device, no need to configure.
2. Actual values in the application should be used for data memory, not default value.
3. Correct, you can use the Calibration in bqStudio to perform calibration.
4. You can use GPC…
Hi First,
It sounds like you have the cells selected appropriately.
The gauge on the BQ76930 EVM is the BQ78350-R1A. Depending on when the board was produced it may have an earlier version. You can load the latest version from the product folder and load…
There are two issues, which are not independent from each other:
1. The gauge doesn't predict temperature correctly for your system. Your battery heats up to around 80deg.C during discharge. The gauge doesn't predict temperature that high and therefore…
Marcel,
I would not say the jumps are not understood. The jumps will occur every time you get a new "Simulation" from the gauge based on the the conditions the pack is current in.
I recommend you take a Relax, Discharge, Relax test run though…